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Petrol is more efficient as a fuel than ethanol, because the energy generated by burning a fuel is primarily released by formation of bonds between oxygen and carbon or hydrogen. One such bond already exists in an ethanol molecule, whereas in petrol few or no such bonds exist.
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What amount of ethanol is needed to produce the equilavent a liter of petrol energy wise?
Ethanol contains less than half the energy per litre as is contained in an equal amount of petrol (Petrol= 77.3 MJ/kg, Ethanol = 29.7 MJ/kg.) This does nor account for the higher production energy costs associated with production of fuel grade ethanol from food grade crops like wheat or corn. You would have to burn more than twice the volume of fuel in an ethanol powered car.
Is hexane more dense than ethanol?
No, hexane is less dense than ethanol- hexane has a density of 0.6548g/mL and ethanol has a density of 0.789g/mL, so hexane will float on top of ethanol.
Is 2-naphthol soluble in ethanol?
yes, it is much more soluble in ethanol than in water.
Do fruits contain more ethanol than vegetables?
You are probably referring to ethylene and not ethanol. Fruits produce more ethylene as they age.
Does ethanol burn more cleanly than methane?
no. lol
Which is more efficient a petrol engine or a diesel engine?
It will depend upon the conditions. Under normal operating conditions a diesel engine is more efficient than a petrol engine.
Are diesel automobiles more fuel efficient than ethanol gasoline automobiles?
yes
What are advantages of petrol?
1) It's cheaper than Deisel and 2) Petrol cars go faster! (~8
Why diesel gives more milage than petrol and petrol car costly than diesel?
Diesel engines are more efficient and do use less fuel, but they do not cost less than a petrol engine, they cost more. Diesel fuel also costs more. A diesel engine will however last longer.
What is better a diesel or petrol engine?
It's more a question of "different", than "better". Petrol engines can have better power-to-weight ratios, while diesels are a little more efficient.
Is diesel or petrol more efficient?
Diesel engines are more efficient. They get better mileage, produce more torque, and last much longer than a gasoline engine. They are also more expensive to build.
Does the toyota solara run on ethanol?
Yes a toyota solara can run on ethanol fuel. There is a conversion kit that can be bought for a few hundred dollars, and it's well worth it, as ethanol fuel is cheaper than gasoline, and more efficient.
Is ethanol more volatile than acetone?
Acetone is more volatile than ethanol.
Why petrol engines are faster than diesel engines?
Petrol engines are widely considered to be the most efficient of engines, because they are more refined than diesel. Since diesel is not completely refined, it cannot completely combust and so does not (in theory) produce as much energy per litre of fuel as a petrol engine. However, some diesel engines can be made to be much more efficient than petrol engines because they have a different type of fuel, and burn it in a different way. Petrol engines are widely considered to be the most efficient of engines, because they are more refined than diesel. Since diesel is not completely refined, it cannot completely combust and so does not (in theory) produce as much energy per litre of fuel as a petrol engine. However, some diesel engines can be made to be much more efficient than petrol engines because they have a different type of fuel, and burn it in a different way.
Which liquid expands more Ethanol or Water?
Water expands more than ethanol because the boiling point og water is more than that of ethanol.
Why isn't alcohol production from biomass energy efficient?
distillation. Boiling the solution requires more energy than the energy content of the ethanol present.
Why is a hydrogen engine more powerful than a petrol engine?
As hydrogen releases more energy than petrol, H engine is more powerful than petrol .
